Using Kotlin with Serverless localstack JSON

localstack.json

{
    "APIGateway": "http://localhost:4567",
    "CloudFormation": "http://localhost:4581",
    "CloudWatch":"http://localhost:4582",
    "DynamoDB": "http://localhost:4569",
    "DynamoDBStreams": "http://localhost:4570",
    "ES": "http://localhost:4571",
    "Firehose": "http://localhost:4573",
    "Kinesis": "http://localhost:4568",
    "Lambda": "http://localhost:4574",
    "Redshift": "http://localhost:4577",
    "Route53": "http://localhost:4580",
    "S3": "http://localhost:4572",
    "SES": "http://localhost:4579",
    "SNS": "http://localhost:4575",
    "SQS": "http://localhost:4576"
}